Separator attachment for bean harvesters



G. E. PRl'rcl-IARDv .E A

sEPAEAToE ATTACHMENT Foa BEAN HARVESTERS Sept. 27, 1927.

' Filed March 7, 1924 I e sheets-sheetV 1 311021 n To@ Elwin/wlw sept.27, 1927. 1,643,629

G. E. PRITCHARD SEPARATOR ATTACHMENT FOR BEAN HARVESTERS I Filed March'7, 1924 6 Sheets- Sheet 2 Asept. 27, 1927.

f G.. E. PRITCHARD SEPARATOR ATTACHMENT FOR BEAN HARVESTERS esheets-sheet s Filed March 7, 1924 Erla/zand,

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Sept. 27, 1927. G. E. PRITCHARD SEPARATOR ATTACHMENT EOE BEANHARVESTERS' e sheet-sheet 4 Filed March '7, 1924 'se t. 27 1927.

p v v G. E. PRITCHARD SEPARAT'OR ATTACHMENT FOR BEAN HA-RVESTEKRS FiledMaron v', 1924 e sheets-sheet 5 attaining l "Sept 27, 1927.

` G. E. PRITCHARD SEPARATOR ATTACHMENT EOE BEAN HARVESTERS 6Sheets-Sheet 6 :Inunlhfz #lidia/f6? File'd March 7, .1924

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Patented Sept. 27, 1927. i

' UNITED s'TArE-s '-oFfFlcE.

GEORGE EDWARD rRi'roHAnn, on EniZAnETH orTY, Non'rnonnonmaysErAnAToE'nr'rnoniirENr ron 4BEAN HARVESTERS.

Application ledMarch 7,1924'. Serial :No. 697-,6115- and rows ywithoutreversing the direction of the' c-onveyor.

Fig-9 isadetail perspective view of one of the attaching clips.

Fig. 10 isga similar view o'ffanother.

Fig 11 is aI detail sectional view. Fig. L12 is .ailongitudinalsectontaken on the -line 12-12 of Fig; .11. f Fig. 13 is an endelevationiofthe separato attachment. H

Fig. 14; is la side elevation of one of the lrollers,employed inconnection with the separator; Y l 'V lFig. 15 is an enlarged:transverse section taken on the line 15-15 ofF ig. 14. y Fig. 16 is aydetail plan view vof another form-of. roller showing saw teeth intheposition they assume before being 'bent' out- This invention relates tomachines for harvesting and threshing peas and `beans of the typeadapted to be `drawn over a field and provided with means to direct thelvines into the machine, strip the peas from the plants and thenseparate the peas from the irefuse.

The object ofthe inventionis to provide a separator for a harvest-er ofthis character so constructed that the beans thrown by the threshingreel thereon 4are thoroughly screened and the chad ,and hulls evenlydistributed on the ground-:to prevent interference with thecoming crops.v

Another object. is -to provide an automati-` cally operated Vattachmentof this characterl which requires no attention on thepart .of the driverthereby ,producing a thoroughly efhcient one man harvester. l

With the foregoing and other `objects in wlrdly; `and view which willappear' as lthe description A Fig. 17 is an enlarged detail transverseproceeds, the invention resides in the comsection of the rollershown inFig. 'after bnationand arrangement of partsiand in vthe teeth havebeen-loentout.fornseV the details of construction hereinafter de- Theharvester shown .in connection `with scribed and claimed, -it beingunderstood thS SGPMHQI'S ,the Same aS that llustrat-ed that changes inthe :precise embodiment of Yin my copending application Ser. No. A586,-the invention herein-disclosed, maybe made 4:72, filed `Sept. 6, 1922.now matured into ,within the scope of what isclaimed without Pat. No.1,571,491; This harvester includes depart-ing from the `spirit of `theinvention. a bodysupportingframe'lcomposedcof side 1n the accompanyingdrawings and cross bars- Qand 3 respectively witha Figure 1 represents aside elevation 'with tongue 4 extending from the front of the partsbrokenV out and in sectionrof' a harfframe to be used' in drawing themachine rester equipped with this improved separaover the field.. ,Themachine is equipped tor. f withthe usual driving. wheels 5 and 6 on Fig;2 is L top plan View thereof with the'4 the inner faces rv`of which varemounted wheels broken oli" and yin sec'tionfand the sprocket gears 7kand@ over which .Operate separator broken of'fyfor convenienceinillus-v sprocketchains 9 which also operate over tration. sprocketsv1() carriedby a transversely ,ex-

1Fig..3 isa plan `,view ofthe-s tending shaft 1,1 on which` sha-ftrismounted Vtachment detached.

4ov Fig. 4f 'is aside elevation onval small scale r' ofthe separatorattachment.

Fig. 5l isa longitudinal `sec-tion yof .the lower or inner portion oftheseparator attachment f Fig. 5il is a view similar toFigfEiof theVV upperor outer portion ofrthe separator attachment which forms a continuationioffthe eparator atare `design-edtofrake oifthe beans and throw V thembackwardlyjonto the separatorl constituting this ;invention which pres--entlybe described f l A hood 14 isarrangedfover the threshing reel .toprotect the fingers thereof .and 'prevent the Abeans from lbeing -thrownout'gby vthese fingers. LA .plurality ofgeleats 15 verified 'by itheinner taie@ ef this f hQOdtO operate esiretarders; .form-reve tins .thebeers from ibeIrg-fqalried round and .roungdbylthe f fingers and passingout throughV the 'or of die machine pIitOi'thef-greund. f f Y A body 16vde penlcils {fr om:4 the frame Land rhaS-a-,f1e-.heedi0penne 17angtheifrtporbfm the 'ltottom .teen-.erf threugh habsch the 4port-ionVshown inrFig. 5.

- Fig. 6 rsfa transverse sect-ion vvtaken Von the line 6- -6 of Fig. 5%

Fig. Sy is a side elevation of the-chaingsupporting mechanism -whichpermits fthe lmachine to be backed at the turning of corners ew takenlern the line thethreshing reel -1 '2,the'fingers 13.0f which vines andstalks of t-he beans pass, the bea-ns being raked off by the lingers 13and conveyed backwardly onto the separator.

The separator constituting this invention which is designed for use inconnection with the harvester extends down into the body 16 to a pointbelow the threshing reel as is shown clearly in Fig. 1.

This attachment comprises side bars 21 connected by a smooth plate 23for a. portion ot their length in advance ot" which plate is arranged aseparator screen 24 having longitudinally spaced transversely extending`cleats 25 disposed on its upper tace to prevent the beans or peas frombeing ted too rapidly over the screen so that they will have ample timeto drop thiough the screen. Arranged along the upper edges ot the sidemembers 21y are beveled guides 22 inclined downwardly and inwardly toprevent tlie beans or peas from falling over the edges of theattachment. The cleats 25 in addition to formingretarders for the beansalso operate to cause the vines and chatil to turn over as it strikesagainst the cleats and thus allows thebeans to work to the bottom.

Arranged along the sides ot the attachment over the screen 24 are thinsheet metal tracks 26 for the chains 30 to run over and prevent wear onthe screen as well as on the plate 23. Arranged below the screen 24 isanother screen 27 tlie'lower end of which extends beyond the lower endot screen 24 and merges into a smooth imperiora-te plate 23 which isdesigned to receive the cliaif which does netpass through the lowerscreen and where it may be picked upl by the endless conveyor whichdirects it up onto the upperplate 23 to be again carried over plate 23and screen 24and discharged at the rear end ot the attachment. A track29 similar to track 26 is arranged to receive the lower stretch of thedrag chain to prevent the vchain from wearing out the lower screen 27and the plate 28.

' The drag chain 30 comprises two sprocket chains 30' and 30b which aredesigned to v travel over the tracks above referred to and are connectedby cross lbars 31 designed for conveying or dragging up the beans withthe vines and chaii to be separated by the screens. slightly above theplate 23 and the upper screen 24 so as to allow the beans or peas tosettle down close 4to the screen. ,These bars when they pass over thelower screen 2? and plate 23 run in close proximity thereto so as tobrush the smaller chaif down to the front end of vthe attachmentwhere'it is v`returned to the top screen 24 bythe con veyor. p

These drag chains 30a and y3Ob'r'un over idle'rollers or; sprockets32-at the lower end ot the attachment and are driven by sprockets 33Alxed--to a shaft-34 vlocated.

These cross'bars" 31 are spaced' lthe beansor peas which 'fall throughthe upper screen 24. The top screen 24 also has its upper end bentaround shaft 34.

A dash pan 36 'is located. at the lower end of the attachment torguiding and directing the beans up onto the plate 23 over which the dragchain 30 operates and prevents the beans from remaining in theA pocketin which the idle sprockets 32 run. A beveled edge cleat 37 is securedto the lower end of Vplate 23 and is just thick enough to come up underthe edge ot the crossbars 31. The pan has a V-sliaped opening 33 thereinthetapered portion eatending toward the rear and on each side ot whichis a tlange 39 to prevent the beans and peas when threshed from thevines from falling through the opening 33 and guides them onto theconveyor.

vA distributor 40 is mounted at the upper end of the attachment wherethe drag chain passes over the sprocket wheels 33 and is designed toremove the trash in the form ot vines and cliaii' from the bars 31 toprevent its passing onto the lower screen. This distributor 40 alsooperates to distribute the refuse evenly` overthe ground. The toi-m ofdistributor shown in Fig. 5UL comprises end disks as 41 mounted on shaft42 which is driven'by a sprocket 43 over which passes a'chain 44. Theheads or disks 41 of the distributor 40 are connected by bars or plates45 in the outer edges of which are pins 46 any desired number ot whichmay 'be employed and which operate as rakes to remove the trash trom thedrag chains.

In' Figs. .14 and 15 a different v:torm of distributor is shown composedof a. roller 47 coveredy by a sheet metalfcylinder 43 fromv 'theperiphery of which extend pins 49 here shown arrangedin radially spacedrows and which operate in the same manner as the pins-46 of thedistributor 40.

In Figs. 16 and 17 still another fform ot' distributor is showncomprising a roller 50 lcovered with sheet metal 51l from which isstruck a plurality ot saw teeth `52 bent outwardly at right angles tothe cover las `shown in Fig.' 17 and which operatein the saine manner asthe teeth of the kother distributors.

A sprocket 53 is fixed to one end of the shaft 34 and a sprocket chain54 passes over this sprocket and 'the distributor driving sprocket 43sothat when shaft 34'is rotated the distributor turned.

The distributor 40 is mounted in hanger-s adjustably mounted on the sidemembers 31 so that the distributor may be moved toward or away from thedrive chain to insure the removal of the refuse therefrom.

Mounted to turn freely on the end of shaft 34 opposite to that whichcarries the sprocket 53 is a reversing block 56 shownin Figs. il, 8 and13.4 This block 56 is constructed similar to a pulley block beingcomposed of two oblong plates 57 and 58 here shown substantiallydiamond-shaped and between which is mounted a sprocket wheel 60 whichdrives shaft 34: over which chain 7() operates.

These plates 57 and 58 have sleeves or hubs 57a and 5 a loosely mountedon shaft 34 and the ends of the plates are connected by idle rollers 59and over which the chain 70 passes.

Another idle roller 61 connects plates 57 and 58 intermediate their endsand operates to prevent the two stretches of chains from rubbingtogether.

An inspection of Fig. 8 will clearly show the operation of block 56which is designed to permit the harvester to be turned at the ends ofthe rows, without changing the direct-ion of movement of the dragchains. 'I he block being loose o-n shaft 34 and chain 70 passed overroller 59 under and in engagement with sprocket 60, then over roller59ZL and back under roller 61, the pull when the machine is movingforward is in the direction of arrow a causing chain to pull tight overroller 59 and the block to swing under shaft 34. lVhen the machine backsthe strain or pull is in the direction of arrow Z) the strain coming onroller 59a causing the block to follow the path indicated by the dott-edlines c onto the top of shaft 9A. While the block moves as abovedescribed from under to over shaft 84 the conveyor chains stand stilland thus permit the lmachine to be turned at the end o'frows withoutreversing` the direction of the conveyor. Of course if the machine wereto continue to back after the block passes to the position above shaft34 the conveyor would reverse.

. The attachment 2O is detachably connected to the harvester byinserting the lower end of the attachment into the body of the harvesterand engaging wedge-shaped'lug 75 carried by the outer faces of the sidememwill vbe correspondingly bers 21 of said attachment, with correspondingly shaped pockets 8O on the harvester body. The weight of theattachment will opera-tete wedge the lugsy in said pockets 8O and thussecurely hold it connected with the harvester without the use of yboltsor the like. To detach the attachment the lugs are simplylifted out ofthe pockets by moving the attachment rearwardly after firstdisconnecting the chain 70 from its driving sprock* et 1;

In the use of this machine the harvester with the separating attachmentattached as shown in Figs. 1 and 2 is drawn over the rows of beans orpeas to be harvested the vines entering the lianged opening 17 in thefront of the bottom of the harvester body and the rotation of the reel12 which is incident to the turning of the wheels 5 and causes thefingers 13 of rsaid wheel to strike the bean pods with sufficient forceto thresh the beans out of the pods and deliver both into the machinecarrying them around with thev reel, delivering both the hulled beansand the vines, hulls, chaff and the like onto the separating attachment,the conveyor of which receives them and carries them up onto the topscreen 24. The beans are sifted through the meshing ofthe screen andfall onto screen 27 below it while the refuse passes out from the end ofthe separator. Peas delivered onto screen 27 pass through the meshthereof into a suitable receptacle or into the body Vof the harvesterwhile the cha if is carried by the conveyor down over the plate 28 backup over the upper stretch of the conveyor and is discharged from theouter end of the separator. y

It is of course understood that when desired the separator may beremoved from the harvester in the manner above set forth and thehavester used without it. It is also to be understood that while thisseparator 20 is Yprimarily designed for use in connection with theharvester herein shown it may be used with other harvesters.

-What is claimed is '1, A separator for bean harvest-ers including aframe, spaced upper and lower screens positioned within the frame,transversely disposed cleats secured to the Lipper screen, a conveyoroperating over the screens, said conveyor including arched membersadapted to pass over the cleats to carry material thereover, and saidarched members adapted to rub the upper surface of the lower screen.

2. In a separator for bean harvesters, a

frame, upper and lower inclined screens mounted on the frame,transversely disposed cleats secured to the upper surface of the upper.screen, an endless conveyor operating` over the screens, said endlessconveyor in` cluding lateral chains, barsI connecting the chains, saidVbars being substantially U- shaped to operate in spaced relation withthe upper screen and clear the cleats in passing over the upper screen,said bars adapted to rub the upper surface of the lower screen, andcleats adapted to retard the movement of material over the upper screen.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature.

GEORGE EDWARD PRI'ICHARD.V

